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How Does Your Composite, Prepreg, Thermoset, or Epoxy Material Perform?

 Manufactures go to Associated Polymer Labs to have a performance evaluation done on their products because they want to be assured their product performs. Many companies can’t afford to have a product failure, defect, or worse a recall.   

Characterizing Foam Hinged Lid Containers Utilizing Dynamic Mechanical Analysis (DMA)

Dynamic Mechanical Analysis is a proven effective tool in characterizing open cell foams like polyurethanes, and closed cell polyolefin foams.

Plastic Medical Device Compatibility and Selecting Materials

One of the first fundamental steps in new product development is feasibility. When studying the products' feasibility, it is necessary to study material compatibility and review the selection of materials. Most medical devices contain many parts or components that are integrated together.

Is the Raw Material Used Working for You?

A great test package, for incoming raw material resins, and to determine the viscosity as a function of temperature. In order to successfully predict the processibility of polymer melts, it is important to characterize the viscoelastic properties and the temperature dependency.

Does Your Material Stand the Test of Time?

Stress sweeps, also referred to as amplitude sweeps, are used as an efficient way to characterize material stability. The wider the linear viscoelastic range the more stable the material.

Predicting Foamability Using Rheology

Many different polyolefinic foams and effectivelynonfoamable polyolefinic resins were studied by ASTMD-4440, “Standard Test Method for Plastics: Dynamic Mechanical Properties Melt Rheology” techniques [1].  The sensitivity of this test method to chain branching of the polymeric molecule was maximized by optimization of the test setup parameters.

Dynamic Mechanical Thermal Analysis

DMA is short for Dynamic Mechanical Thermal Analysis (DMTA), which is another name for Dynamic Mechanical Rheological Testing (DMRT).

Rheometers for mechanical rheometry are of two types:

1)Linear displacement, RSA II Rheometrics Solids Analyzer

2)Rotational, SR5 Rheometrics Controlled Stress Rheometer

Rheology is the science that studies the deformation and flow of materials, whether in liquid, gel, melt, solid, or composite form, in terms or their elasticity and viscosity.

Dynamic Mechanical Analysis

Dynamic Mechanical Analysis      DMA

The DMA determines changes in sample properties resulting from changes in five experimental variables: temperature, time, frequency, force, and strain. The deformation can be applied sinusoidally, in a constant, or under a fixed rate. The DMA uses samples that can be in bulk solid, film, fiber, gel, or viscous liquid form. Interchangeable fixtures are employed to allow you to measure many properties, including: modulus, damping, creep, stress relaxation, glass transitions, and softening points. 

Dynamic Mechanical Analysis measures viscoelastic properties of materials:

Elastic modulus (storage modulus, E')

Viscous modulus (loss modulus, E'')

Recycled Plastic Blend Technology 2009

Recycled Plastic Blend Technology

How can “garbage” be transformed into a sustainable product line? This is a million dollar question.